GATE CE 2025 Set 2 — Question 28

MSQ+1 / -0MediumBitumen PropertiesBitumen & Mix DesignTransportation EngineeringMarshall Mix Design

Transportation Engineering → Bitumen & Mix Design → Bitumen Properties

Last updated 5 September 2026

Question

Which of the following statements is/are INCORRECT ?

Correct answer (A) Bitumen having lower softening point is preferred in warm climate regions. Solution Statement (A) is INCORRECT because in warm climate regions, bitumen with a higher softening point is preferred to ensure it does not soften excessively under high ambient temperatures, which prevents issues like rutting or bleeding. Statements (B), (C), and (D) are correct: viscosity affects workability; Marshall mix design typically targets 3-5% air voids; and solubility tests determine purity. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) Bitumen having lower softening point is preferred in warm climate regions. Solution Statement (A) is INCORRECT because in warm climate regions, bitumen with a higher softening point is preferred to ensure it does not soften excessively under high ambient temperatures, which prevents issues like rutting or bleeding. Statements (B), (C), and (D) are correct: viscosity affects workability; Marshall mix design typically targets 3-5% air voids; and solubility tests determine purity.

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